For those of you who want to learn about solar electronics and also make a solar charger yourself, here’s a great USB solar charger you can make that also can be applied to a coffee cup or anything for that matter.
Mr. Buzz is a solar powered USB charger in a cup! The lightweight and flexible PowerFilm solar panel charges up the 2400mA battery pack so you can recharge your USB device even without the sun.
via instructables – (Get the Kit Here)

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